In this article, a new vector control intended for an induction motor in double fed mode is proposed. It is based on the principle of a double flux orientation of stator and rotor at the same time. Therefore, the orthogonality created between the two oriented fluxes, which must be strictly observed, leads to generate a linear and decoupled control with an optimal torque. The obtained simulation results show the feasibility and the effectiveness of the suggested method, which, in fact, allows to avoid the open loop stability problems inherent to this mode of power supplying of wound rotor induction machine.
The simulation of the global Part-Tool-Machine-System (PTMS) dynamic behaviour during cutting is one of the validation procedures used to prepare a machining process. Various objectives could be reached when using simulation and this depends on the user who could be the machine-tool designer, the tool designer or the machinist. Two kinds of mathematical models, in order to develop simulation programs, are suggested for the (PTMS) modelling: the first one describes the (PTMS) as a mechanical structure and the second one describes the interaction between a tool and a worked part. In our study, we are interested in the second mathematical model and we must firstly establish a dynamic cutting force law, including different parameters and a damping term. The aim of this research paper is to suggest an identification method for the dynamic cutting force law parameters, calling (CDFC), by using a dynamometer in the case of an orthogonal cutting process.